document.write( "Question 705656: Each wheel on a vehicle has a radius of 20 inches. if the vehicle's wheels rotate 360 revolutions per minute, what is the approximate speed of the vehicle in miles per hour? Round to the nearest ten miles per hour. \n" ); document.write( "
Algebra.Com's Answer #434671 by nerdybill(7384)\"\" \"About 
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Each wheel on a vehicle has a radius of 20 inches. if the vehicle's wheels rotate 360 revolutions per minute, what is the approximate speed of the vehicle in miles per hour? Round to the nearest ten miles per hour.
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\n" ); document.write( "circumference of wheel:
\n" ); document.write( "2(pi)(r)
\n" ); document.write( "2(3.14)(20)
\n" ); document.write( "(3.14)(40)
\n" ); document.write( "125.6 inches
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\n" ); document.write( "360 rev/min * 125.6 inches/rev
\n" ); document.write( "45216 inches/min
\n" ); document.write( "45216 inches/min * 60 min/hour
\n" ); document.write( "2712960 inches/hour
\n" ); document.write( "2712960 inches/hour * 1feet/12inches
\n" ); document.write( "226080 feet/hour
\n" ); document.write( "226080 feet/hour * 1mile/5280feet
\n" ); document.write( "42.82 miles/hour
\n" ); document.write( "rounded to nears 10 mph:
\n" ); document.write( "42 miles/hour\r
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